Inking device of rotary press

An inking device of a rotary press comprises an ink fountain roller rotatably supported on left and right frames, and an ink fountain device movable toward and away from the ink fountain roller. The ink fountain device is switchable among a fixed position close to the ink fountain roller, a throw-off position separated from the ink fountain roller, and an intermediate position provided between the fixed position and the throw-off position, and switching means is provided for switching the ink fountain device by a pivoting operation of a locking handle so that the ink fountain device is located at any of the three positions. The inking device makes it easy to secure a vertical space for operating an ink fountain, and can fix the ink fountain device with a constant clamping force without a tool.

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What is claimed is:

1. An inking device of a rotary press, comprising: a plurality of ink fountain devices arranged vertically in multiple stages, each ink fountain device of said plurality ofink fountain devices including a respective rotatably supported ink fountain roller; each of said ink fountain devices being movable between three steady state positions including, a fixed position in which each said ink fountain device is located at aposition close to the respective ink fountain roller, a throw-off position in which each said ink fountain device is separated from the respective ink fountain roller, and an intermediate position provided between said fixed position and said throw-offposition; and wherein when an upper ink fountain device of an adjacent pair of ink fountain devices of said plurality of ink fountain devices is at said intermediate position, a space is provided above a lower ink fountain device of said pair of inkfountain devices for operating the lower ink fountain device; and respective switching means for switching and holding said ink fountain devices at said fixed, said throw-off, and said intermediate steady state positions.

2. The inking device of a rotary press as claimed in claim 1, wherein each said ink fountain device has a first spring member for pressing said ink fountain device when said ink fountain device is in said fixed position.

3. An inking device of a rotary press, comprising: an ink fountain roller rotatably supported; an ink fountain device movable between a fixed position in which said ink fountain device is located at a position close to said ink fountain roller,a throw-off position in which said ink fountain roller device is separated from said ink fountain roller, and an intermediate position provided between said fixed position and said throw-off position; switching means for switching said ink fountaindevice between said fixed position, said throw-off position, and said intermediate position, said switching means including, an eccentric pin rotatably supported on at least one of frames, a locking handle fixedly provided on said eccentric pin, and ahook pivotably fitted onto an eccentric shaft portion of said eccentric pin, and releasably supported on an engagement pin provided on said ink fountain device, wherein said locking handle can be held at a first position at which said ink fountain deviceis held at said fixed position, with said hook being engaged with said engagement pin, and a second position at which said ink fountain device is held at said intermediate position, with said hook being engaged with said engagement pin, and wherein saidlocking handle can move to a third position at which engagement between said hook and said engagement pin can be released.

4. The inking device of a rotary press as claimed in claim 3, further comprising: holding means for holding said locking handle at each of said first position, said second position, and said third position.

5. The inking device of a rotary press as claimed in claim 4, wherein said holding means includes, grooves, an engagement member for engaging said groove, and a second spring member for urging said engagement member in a direction in which saidengagement member engages said groove.

6. The inking device of a rotary press as claimed in claim 4, further comprising: release means for releasing said hook from said engagement pin when said locking handle is located at said third position, wherein said hook is disengaged fromsaid engagement pin by moving said ink fountain device in an upward direction.

7. The inking device of a rotary press as claimed in claim 6, wherein said release means has a third spring member for urging said hook in a direction in which engagement of said hook with said engagement pin is released, when said lockinghandle is located at said third position, and for releasing an urging force on said hook when said locking handle is located at said first position or said second position.

8. The inking device of a rotary press as claimed in claim 3, wherein said engagement pin is engaged with said hook by upwardly moving said ink fountain device located at said throw-off position when said locking handle is located at said secondposition.

9. The inking device of a rotary press as claimed in claim 8, wherein said hook has at a front end thereof an inclined surface raised by said engagement pin.

10. The inking device of a rotary press as claimed in claim 9, wherein said hook raised by said engagement pin engages said engagement pin by a weight of said hook.

11. An inking device of a rotary press, comprising: an ink fountain roller supported rotatably; an ink fountain device movable among a fixed position in which said ink fountain device is located at a position close to said ink fountain roller,a throw-off position in which said ink fountain device is separated from said ink fountain roller, and an intermediate position provided between said fixed position and said throw-off position; switching means for switching said ink fountain deviceamong said fixed position, said throw-off position, and said intermediate position, said switching means including, an eccentric pin rotatably supported on at least one of frames, a locking handle fixedly provided on said eccentric pin, a hook pivotablyfitted onto an eccentric shaft portion of said eccentric pin, and releasably supported on an engagement pin provided on said ink fountain device, wherein said locking handle can be held at a first position at which said ink fountain device is held atsaid fixed position, with said hook being engaged with said engagement pin, and a second position at which said ink fountain device is held at said intermediate position, with said hook being engaged with said engagement pin, and wherein said lockinghandle can move to a third position at which engagement between said hook and said engagement pin can be released; and, further comprising, holding means for holding said locking handle at each of said first position, said second position, and saidthird position; and wherein said holding means includes, grooves, an engagement member for engaging said grooves, and a second spring member for urging said engagement member in a direction in which said engagement member engages said grooves.

12. An inking device of a rotary press, comprising: an ink fountain roller supported rotatably; an ink fountain device movable among a fixed position in which said ink fountain device is located at a position close to said ink fountain roller,a throw-off position in which said ink fountain device is separated from said ink fountain roller, and an intermediate position provided between said fixed position and said throw-off position; switching means for switching said ink fountain deviceamong said fixed position, said throw-off position, and said intermediate position, said switching means including, an eccentric pin rotatably supported on at least one of frames, a locking handle fixedly provided on said eccentric pin, a hook pivotablyfitted onto an eccentric shaft portion of said eccentric pin, and releasably supported on an engagement pin provided on said ink fountain device, wherein said locking handle can be held at a first position at which said ink fountain device is held atsaid fixed position, with said hook being engaged with said engagement pin, and a second position at which said ink fountain device is held at said intermediate position, with said hook being engaged with said engagement pin, said locking handle can moveto a third position at which engagement between said hook and said engagement pin can be released; and, further comprising, holding means for holding said locking handle at each of said first position, said second position, and said third position; release means for releasing said hook from said engagement pin when said locking handle is located at said third position, and, wherein said hook is disengaged from said engagement pin by moving said ink fountain device in an upward direction.

13. An inking device of a rotary press, comprising: an ink fountain roller rotatably supported; an ink fountain device movable between a fixed position in which said ink fountain device is located at a position close to said ink fountainroller, a throw-off position in which said ink fountain device is separated from said ink fountain roller, and an intermediate position provided between said fixed position and said throw-off position; switching means for switching said ink fountaindevice between said fixed position, said throw-off position, and said intermediate position, said switching means including, an eccentric pin rotatably supported on at least one of frames; a locking handle fixedly provided on said eccentric pin; a hookpivotably fitted onto an eccentric shaft portion of said eccentric pin, and releasably supported on an engagement pin provided on said ink fountain device, wherein said locking handle can be held at a first position at which said ink fountain device isheld at said fixed position, with said hook being engaged with said engagement pin, and at a second position at which said ink fountain device is held at said intermediate position, with said hook being engaged with said engagement pin, wherein saidlocking handle can move to a third position at which engagement between said hook and said engagement pin can be released; and wherein said engagement pin is engaged with said hook by upwardly moving said ink fountain device located at said throw-offposition when said locking handle is located at said second position.